When we see do_configure failures in the build, the config.log will be helpful in resolving the issue. In the same vein as Bug 2034, this bug is about excavating the valuable information and including it in the buildbot failure email. In this case, inlining the config.log would be sufficient.
I'm not sure this is autobuilder specific, we should probably dump the config.log into the bitbake logs whenever we see the expression "please see config.log". I've lost count of how often I've said "please send me the config.log file as the real failure is there". We should be able to improve autotools.bbclass to do this if configure fails.
Richard, ah that makes even more sense. Recategorizing.
Fixed in master: http://git.yoctoproject.org/cgit.cgi/poky/commit/?id=b8bd56e34d05ed7463d3125e630f6e70ff2fdbd9
Setting this to verified. Tested in commit 6382732a7516c67cb1a3e3e438b06f4fc43efa4e